Floating wind turbine drivetrain multidimensional reliability evaluation by Gaidai hypersurface methodology DOI Creative Commons
Oleg Gaidai,

Shicheng He,

Jinlu Sheng

et al.

Journal of industrial safety., Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Multivariate ocean waves dynamics in North Sea and Norwegian Sea by Gaidai reliability method DOI Creative Commons
Oleg Gaidai, Alia Ashraf, Yu Cao

et al.

Energy Reports, Journal Year: 2024, Volume and Issue: 12, P. 2346 - 2355

Published: Aug. 23, 2024

Current study presents state-of-the-art approach for evaluating spatiotemporal multivariate environmental risks, especially suitable complex systems that have been either numerically simulated or physically observed. Advocated methodology provides accurate hazard risk forecasts, based on real-time in situ data. Design of offshore structures requires assessment – and naval operations require both short- long-term reliability analyses. Contemporary evaluation techniques often struggle with raw timeseries data due to intrinsic multidimensionality nonlinear interconnections among critical system's dimensions/components. In the current effectiveness Gaidai method is illustrated by utilizing significant wave heights dataset, measured within two zones: Heidrun Troll Norwegian oil fields. Analyzing waves being particularly challenging their complexity, high nonlinearity, multidimensionality, yet dynamic inter-correlations. Global warming several factors, affecting ocean sea heights. For naval, marine operating harsh weather conditions, robust methods crucial design safe operations. aims validate benchmark methodology, enabling extraction. allows efficient global damages, failures risks a wide range energy systems. Primary advantage presented lies its ability treat practically unlimited number dimensions, while existing mostly limited univariate bivariate

Language: Английский

Citations

23

Applying the multivariate Gaidai reliability method in combination with an efficient deconvolution scheme to prediction of extreme ocean wave heights DOI
Oleg Gaidai, Yu Cao, Fang Wang

et al.

Marine Systems & Ocean Technology, Journal Year: 2024, Volume and Issue: 19(1-2), P. 165 - 178

Published: Aug. 9, 2024

Language: Английский

Citations

22

Panamax cargo-vessel excessive-roll dynamics based on novel deconvolution method DOI
Oleg Gaidai, Alia Ashraf, Yu Cao

et al.

Probabilistic Engineering Mechanics, Journal Year: 2024, Volume and Issue: 77, P. 103676 - 103676

Published: July 1, 2024

Language: Английский

Citations

20

ocean windspeeds forecast by Gaidai multivariate risk assessment method, utilizing deconvolution scheme DOI Creative Commons
Oleg Gaidai, Alia Ashraf, Yu Cao

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102796 - 102796

Published: Aug. 28, 2024

Language: Английский

Citations

19

Design prognostics for 4400 TEU container vessel by multi‐variate Gaidai reliability approach DOI Creative Commons

Yan Zhu,

Oleg Gaidai,

Jinlu Sheng

et al.

IET Intelligent Transport Systems, Journal Year: 2025, Volume and Issue: 19(1)

Published: Jan. 1, 2025

Abstract This case study introduces an innovative multivariate methodology for assessing the lifetime of marine engineering systems, specifically in cargo vessel transportation. The analysis focused on stress data collected onboard a 4400 TEU container during multiple trans‐Atlantic voyages. One major challenges transport lies mitigating risk loss due to excessive whipping loads. Accurate prediction extreme levels deck panels remains difficult, primarily because nonlinear and non‐stationary nature wave ship motion interactions. Higher‐order dynamic effects, such as second‐ third‐order responses, often become significant when ships operate under adverse environmental conditions, amplifying influences. Laboratory simulations, constrained by characteristics scale similarity issues, may not always provide reliable results. Consequently, from vessels navigating weather conditions serves critical resource comprehensive assessment. primary goal this was validate demonstrate effectiveness novel evaluation approach, leveraging measurements areal pressure core dataset. Gaidai proved be robust tool failure, hazard, damage risks complex, panel hull systems.

Language: Английский

Citations

11

Multivariate spatiotemporal windspeeds prognostics across parts of Pacific Ocean using the Gaidai risk assessment approach DOI

Shicheng He,

Oleg Gaidai, Yan Zhu

et al.

Spatial Information Research, Journal Year: 2025, Volume and Issue: 33(1)

Published: Jan. 22, 2025

Language: Английский

Citations

9

State-of-the-art Gaidai hypersurface risk assessment for semi-submersible wind turbines, accounting for memory effects DOI Creative Commons
Oleg Gaidai, Fang Wang,

Jinlu Sheng

et al.

Energy Conversion and Management X, Journal Year: 2025, Volume and Issue: unknown, P. 100946 - 100946

Published: Feb. 1, 2025

Language: Английский

Citations

9

Lifetime assessment for container ship by multimodal Gaidai risk evaluation method DOI Creative Commons
Oleg Gaidai, Alia Ashraf, Yu Cao

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: 2(1)

Published: Jan. 6, 2025

This study presents a novel lifetime assessment technique that may be used in cargo vessel transportation marine engineering applications. onboard measured 4400 TEU container ship panel stress data was analyzed, the during numerous trans-Atlantic crossings. The risk of loss caused by excessive whipping loads is one key issues with transportation. It challenging to predict accuracy deck stresses due complex nonlinear and nonstationary properties wave motions. 2nd higher order motion effects are typically observed when sailing severe, stormy environment, influence nonlinearity grows noticeably. Depending on flow characteristics similarity ratios employed, laboratory testing also dispute. Because this, information acquired from ships operating extreme weather conditions offers unique insight into risks evaluation, as whole. highlights multidimensional reliability approach, based inherent qualities multivariate raw underlying dataset itself. main objective current had been benchmark Gaidai using areal pressure dynamic system dataset. evaluation methodology enabled efficient failure, hazard or damage for variety non-linear hull systems.

Language: Английский

Citations

8

Experimental Gaidai multi-modal risk assessment approach for wind energy harvesters DOI Creative Commons
Oleg Gaidai,

Jinlu Sheng,

Alia Ashraf

et al.

Applications in Engineering Science, Journal Year: 2025, Volume and Issue: unknown, P. 100209 - 100209

Published: Feb. 1, 2025

Language: Английский

Citations

8

Multi-variate structural reliability assessment for wind energy harvester by Gaidai risk assessment method DOI
Oleg Gaidai,

Shicheng He,

Jinlu Sheng

et al.

Mechanics Based Design of Structures and Machines, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: April 10, 2025

Language: Английский

Citations

3